"How do you know if adverse circumstances are God redirecting you, or the devil sabotaging you?"
"I don't know", is my honest answer. In the New Testament, the first Christian missionaries gave both answers, without explaining how they discerned the difference:
"And when they had come up to Mysia, they attempted to go into Bithynia, but the Spirit of Jesus did not allow them."
Any Christians out there have some thoughts? Folks of other faiths that posit a good God and a genius of evil in opposition? Sorry, atheists, to exclude you but by definition you would not assign any supernatural agency to such events.